Egg-testefi



No. 6l5,899. Patented Dec. I3, I898.

a. W.-PBESTUN'.

EGG TESTER.

(Application filed Apr. 6, 1898.)

(No Modal.)

WI TNESS B THF. cams PETERS co. vncrau'mmwasnmn'ron, a c

UNITED STATES PATENT OFFICE.

v GEORGE IVALTER PRESTON, OF CAMDEN, NEW JERSEY.

EGG-TESTER SPECIFICATION forming part of Letters Patent Na 615,899,dated December 1.3, 189d.

Application filed April 6,1898- Serial No. 676,632. (N0 111001610 I ToaZZ whom it may concern.-

Be it known that I, GEORGE WALTER PRES- TON, a subject of the Queen ofGreat Britain,

and a resident of Camden, county of Camden,

and State of New Jersey, have invented certain new and usefulImprovements in Pocket Folding Egg-Testers, of which the following is aspecification, reference being had to the accompanying drawings,forminga part thereof, in which similar letters and numerals of referenceindicate corresponding parts.

This invention relates to a pocket folding egg-tester; and the objectthereof is to provide a simple inexpensive folding device for testingeggs which may at the same time be used as an advertising medium, theadvertising matter being placed upon the outer surface of the walls ofthe device.

The invention will be hereinafter fully de scribed, and specifically setforth in the annexed claim.

In the accompanying drawings, Figure 1 is a perspective view of thedevice when folded. Fig. 2 is a perspective view in open position andshowing an egg in place. Fig. 3 is a central longitudinal section; andFig. 4 is a plan View of the device before folding and on a decreasedscale, showing preferred method of construction.

In the practice of my invention I employ a single piece of cardboard orother similar material, as shown by Fig. 4 of the drawings, comprising abase A, wedge-shaped side walls 13 B, (said side walls adapted to foldinwardly on a central longitudinal line 1, as shown in Fig. 1,) a topwall 0, and an end flap D, c0nnected with the other end of the base andadapted to fold under the base, as best shown in Fig. 1, when the deviceis closed and to stand up between the sidewalls, as shown in Figs. 2 and3, when the device is in open position,thereby preventing said sidewalls from folding inwardly and the device from collapsing.

A hole 0' in the top 0 is of a size adapted to receive the small end ofan egg, but to pre- 1vent the passage of said egg through said ole.

Fixed to the upper surface of the base A is a metallic plate a, theupper surface of which is polished and adapted to act as a reflector,the said plate being preferably composed of nickeled zinc.

The device is preferably constructed of pa per or cardboard, the edgesthereof being connected by means of flaps 2, which are folded .upon andpasted to the under surface of the base A. w

The top 0 is designed to be covered with advertising matter; but theside walls and base may also be utilized for this purpose, if desired.

In the operation as an egg-tester the egg is placed in the hole 0 andthe device is held in such a manner that the rays of light will passthrough the egg in the direction shown by the arrow L and be reflectedby the metal lic plate a in the direction of the line of sight indicatedby the arrow S.

When used as an advertising medium, the flap D is folded under the baseand the side walls folded inwardly, when it will be found that thedevice will take up but little space and is in convenient form and canbe carried around in the pocket or mailed in an envelop.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

As a new article of manufacture, a pocket egg-tester embodying awedge-shaped box of paper, the side walls of which are adapted to foldinwardly, the top of said box having a hole therein adapted to receivean egg, a refleeting-plate fixed upon the upper surface of the base ofthe said box and a flap upon the free end of said base adapted to befolded under said base when the box is folded and to stand between theside walls when the box is open, thereby preventing said side walls fromcollapsing, substantially as shown and described.

In testimony that I claim the foregoing as myinvention I have signed myname, in presence of two witnesses, this 19th day of March, 1898.

GEORGE WALTER PRESTON.

Witnesses:

ALEXANDER KENNEDY McDowEL, PAT. J. OoLLINs.

